Power Electronics
48V → 24V Buck Converter PCB (TI LM5116)
High‑current DC/DC with thermal relief and efficiency tests for robotics distribution.
- Altium
- LM5116
- Oscilloscope
- Load step
Building reliable power, embedded, and hardware projects
Overview
Vancouver, BC • Open to relocating • Co‑op/Internship (2025–2026) • Power • Embedded • Hardware
What I value
Clear communication, collaborative teams, and creative problem solving
Projects
Digital / FPGA
Digital Neural Network Accelerator
Custom accelerators (DMA/dot‑product), Avalon interface, SDRAM + VGA, and testbench automation.
- Verilog
- Quartus
- ModelSim
- SDRAM
Audio / Embedded
Bluetooth Speaker (Class‑AB + ESP32)
Custom Class‑AB amplifier with preamp, tone control, and ESP32 Bluetooth audio + controls.
- Class‑AB
- ESP32
- PCB
- BT A2DP
Robotics
Coin Picking Robot
PIC32‑based autonomous robot with metal‑detector frontend and dual MG90S servos; <2% miss rate.
- PIC32
- STM32
- Servos
- RF link
- LCD
Power / Product
Wireless Charging Power Bank
Qi‑enabled bank with BMS/charging IC, LED capacity indicator, and buck/boost regulation.
- Qi
- BMS
- USB‑C/USB‑A
- Buck/Boost
Digital / FPGA
Reduced Instruction Set (RISC) Computer
Extended simple RISC CPU on DE1‑SoC; SystemVerilog + testbenches; top marks across labs.
- SystemVerilog
- Quartus
- ModelSim
- DE1‑SoC
iOS / Software
Empire — Productivity App (iOS)
Launched on App Store; 6,890+ downloads, 4.9★ avg; Swift + Obj‑C for secure state handling.
- Swift
- Objective‑C
- App Store
Controls / Manufacturing
Reflow Oven Controller
MCU‑based temperature control with K‑type thermocouple + SSR; multi‑stage FSM reflow profiles.
- Assembly
- SSR
- Thermocouple
- FSM
Skills
Electrical
- Power electronics
- Buck/boost
- Oscilloscope
- PCB bring‑up
Digital/FPGA
- Verilog
- Quartus
- Avalon Interface
- SDRAM/PLL
Embedded
- ESP32
- PIC32
- STM32
- UART/SPI/I2C
- Bootloaders
Software
- C/C++
- Python
- Git/GitHub
- Java
- Swift
About
Hello, I’m Jamie, a third-year Electrical Engineering student at UBC. I have a deep appreciation for our technological abundance and wish to work on hardware, the essential layer that makes truly transformative products possible. Aside from engineering work, I spend my time learning the humanities, exercising, and walking in nature. I thrive in collaborative and lively workspaces, and I am open to new opportunities where I can contribute meaningfully. If my work interests you, I’d be glad to connect!
Contact
48V → 24V Buck Converter (TI LM5116)
High-current synchronous buck used in robotics power distribution. Focus areas: thermal management, switching node layout, and efficiency across load.
- Optimized SW node to reduce EMI/ringing and switch losses
- Kelvin-sensed current path; copper pours + via stitching for low impedance
- Measured efficiency and thermal performance across load; added RC snubbers as needed
Tech: Altium, LM5116, DMM, Oscilloscope, Electronic load
Digital Neural Network Accelerator
Designed for DE1‑SoC FPGA platform with custom accelerators connected to Avalon bus. Implemented DMA, dot‑product acceleration, SDRAM controller, and VGA visualization, with automated testbenches.
- Memory‑mapped Avalon interface
- Custom DMA engine for data movement
- Dot‑product accelerator for neural net inference
- SDRAM + VGA integration for visualization
Tech: Verilog, Quartus, ModelSim, Avalon, SDRAM, VGA
Bluetooth Speaker — Class‑AB Amplifier + ESP32
Custom Class‑AB audio amplifier with preamp and tone control. ESP32 handles Bluetooth (A2DP) streaming and UI (volume, track control).
- Thermally‑biased Class‑AB output stage; heat‑sink sizing and SOA checks
- Low‑noise preamp, RC tone network; star‑grounding and decoupling layout
- ESP32 for BT pairing, media keys, and battery/thermal telemetry
Tech: Class‑AB, ESP32, A2DP, PCB layout, Audio measurement
Coin Picking Robot — Group Project
Built a PIC32‑based autonomous robot with a custom metal‑detector front end and dual MG90S servos; achieved <2% miss rate and <100 ms pick‑up latency.
- Developed 2k+ lines of C firmware: interrupt frequency capture, PWM control
- Implemented a radio link to an STM32 handheld displaying live stats on a 4‑bit LCD
- Custom make/flash toolchain for rapid iteration
Tech: PIC32, MG90S, RF link, STM32, LCD, C
Wireless Charging Power Bank
Qi‑enabled power bank featuring a BMS and charging IC for safe operation, LED battery capacity display, and a buck/boost converter regulating between USB‑C (in) and USB‑A (out).
- Charge/discharge protection and cell balancing via BMS + charger IC
- Qi RX module integration and thermal management
- LED fuel gauge and USB‑C sink negotiation
Tech: Qi, BMS, USB‑C, Buck/Boost, Thermal
Reduced Instruction Set (RISC) Computer
October 2024 – November 2024. Designed and implemented an extended simple RISC machine CPU on the DE1‑SoC. Achieved top scores on all labs, demonstrating proficiency in microprocessor architecture.
- Created and tested assembly programs to validate functionality
- SystemVerilog for hardware description and test benches
- Used ModelSim/Quartus for simulation and synthesis
Tech: SystemVerilog, ModelSim, Quartus, DE1‑SoC
Empire — Productivity Manager (iOS)
August 2022 – Present. Developed and launched on the iOS App Store using Swift; 6,890+ downloads, 4.9/5 average rating.
- Low‑level proprietary algorithm adjusts in‑app currency based on device state
- Used Objective‑C functions to detect when protected data became unavailable
- Telemetry and crash monitoring for releases
Tech: Swift, Objective‑C, iOS, App Store Connect
Reflow Oven Controller
Designed and programmed a microcontroller‑based system (Assembly) for precise temperature control using a K‑type thermocouple and SSR. Implemented an FSM for multi‑stage reflow profiles and safety checks; built a dynamic website (HTML/CSS/JS) with Python graphing (Matplotlib/Pandas) for real‑time visualization.
- Thermocouple interface + SSR drive; safety interlocks
- FSM profiles: preheat, soak, reflow, cool‑down
- Web UI + Python backend for plotting
Tech: Assembly, SSR, K‑type, HTML/CSS/JS, Python, Matplotlib, Pandas
